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Serving Tulsa & OKC Homes & Businesses

When comfort matters, Holly Mechanical Services delivers dependable HVAC solutions backed by experience, integrity, and local pride. From quick repairs to full system installs, we’re here to keep your home or business comfortable year-round.

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Established 2016 | HVAC Experience Since 2009

Holly Mechanical Services LLC is a Tulsa-based HVAC company owned and operated by Michael Holly, a Licensed Unlimited Oklahoma Mechanical Contractor. Born and raised in Jenks, Michael has proudly served the Tulsa area for years, earning a reputation for honest work, reliable service, and long-term customer relationships.

Heating and cooling isn’t just about equipment – it’s about helping people. At Holly Mechanical, clients become friends because we take the time to listen, explain options clearly, and solve problems the right way. There’s nothing more rewarding than restoring comfort and peace of mind to a home or business.

Services

Heating

Reliable heating solutions to keep your home or business comfortable, efficient, and worry-free when temperatures drop.

Heating Installation & Replacement

Expert installation and replacement of energy-efficient heating systems built for reliable performance and long-term comfort in Tulsa homes and businesses.

Heating Repairs & Service Calls

Fast, dependable service calls on all types of heating systems. We quickly diagnose issues and make lasting repairs to restore comfort without guesswork.

Heating Maintenance & Preventative Care

Routine maintenance designed to improve efficiency, extend equipment life, and help prevent cold-weather breakdowns – backed by thorough system checks.

Cooling

Dependable air conditioning services designed to handle Oklahoma heat while maximizing comfort and performance.

Air Conditioning Installation & Upgrades

Professional AC installation and system upgrades engineered to handle Oklahoma heat while improving comfort and energy efficiency.

AC Repairs & Service Calls

Prompt service calls for all makes and models of cooling systems. We fix problems right the first time to get your system back online fast.

Cooling Maintenance & System Health

Preventative maintenance that reduces wear, improves performance, and keeps your air conditioning system running at peak efficiency.

and More

HVAC solutions that improve comfort, air quality, and efficiency – tailored to your space and lifestyle.

Ductless Mini-Split Systems

Ideal for homes where different rooms need different temperatures. Ductless mini-splits provide zoned comfort, flexibility, and energy-efficient control – perfect for additions, bonus rooms, or personalized comfort preferences.

Indoor Air Quality & ERV Solutions

Improve the air inside your home with advanced indoor air quality solutions, including Energy Recovery Ventilators (ERVs). ERVs bring in fresh outdoor air while removing stale indoor air, helping balance humidity, reduce pollutants, and maintain energy efficiency year-round.

New Construction & Preventative Maintenance

Complete HVAC design and installation for residential and commercial new construction, plus ongoing preventative maintenance using our 20+ Point Inspection Checklist. We work in attics and crawl spaces to evaluate the full system and provide clear maintenance recommendations.

About Company

Our Mission Statement

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Our Call Center

(555) 789 6754

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Business meeting

Business Consulting

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High Results

Online Consulting

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